作为这次讨论会的一个组成部份,本文将简单地回顾一下材料与液力端结构的关系。许多年来泥浆泵的液缸都用铸铁或铸钢制造。近二十年左右,大多数泥浆泵采用钢液力端。液力端材料的发展过程是,最早用铸铁,后来用铸钢,然后是改进了的铸钢结构。现在则为锻钢。这里谈的是较大的泥浆泵,特别是700马力以上的泥浆泵,这种泵的液力端都是钢的。 As an integral part of this symposium, this article will briefly review the relationship between materials and hydraulic end structures. For many years the mud pump’s tanks were made of cast iron or cast steel. Nearly two decades or so, most mud pumps use liquid steel. The development of hydraulic end materials is the earliest use of cast iron, later cast steel, and then improved cast steel structure. Now forged steel. Here is the larger mud pump, especially the mud pump above 700 horsepower, the hydraulic end of this pump is steel.